Q. No.Subtopic: Skeletal Muscle: Sarcomere |
98%
Level 1: 80%+
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Subtopic: Skeletal Muscle: Sarcomere |
97%
Level 1: 80%+
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Sarcolemma is the covering of
| 1. | Nerve fibres |
| 2. | Muscle fibres |
| 3. | Bone marrow |
| 4. | Liver, kidney and stomach |
Subtopic: Skeletal Muscle: Sarcomere |
95%
Level 1: 80%+
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The light band has….. and is called….
| 1. | Actin, A band | 2. | Actin,. I band |
| 3. | Myosin, M band | 4. | Myosin, A band |
Subtopic: Skeletal Muscle: Sarcomere |
93%
Level 1: 80%+
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Sarcomere is
| 1. | Functional unit of contraction |
| 2. | Portion between two successive Z lines |
| 3. | A part of myofibrils |
| 4. | All of these |
Subtopic: Skeletal Muscle: Sarcomere |
93%
Level 1: 80%+
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Consider the given two statements:
1. Statement I is correct; Statement II is correct
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
| Statement I: | Each actin (thin) filament is made of two ‘F’ (filamentous) actins helically wound to each other. |
| Statement II: | Each ‘F’ actin is a polymer of monomeric ‘G’ (Globular) actins. |
2. Statement I is correct; Statement II is incorrect
3. Statement I is incorrect; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect
Subtopic: Skeletal Muscle: Basic Anatomy | Skeletal Muscle: Myofilaments | Skeletal Muscle: Sarcomere |
92%
Level 1: 80%+
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Which of the following is not a correct match?
| 1. | Light band - I band | 2. | Dark band- H band |
| 3. | Light band- Actin | 4. | Dark band- Myosin |
Subtopic: Skeletal Muscle: Sarcomere |
92%
Level 1: 80%+
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Anaerobic work becomes painful due to accumulation of
1. Ca2+ ions
2. Myosin
3. Lactic acid
4. Creatine phosphate
Subtopic: Skeletal Muscle: Sarcomere |
92%
Level 1: 80%+
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The endoplasmic reticulum, i.e., sarcoplasmic reticulum of the skeletal muscle fibres is:
| 1. | an example of RER and secretes a large number of proteins. |
| 2. | the store house of calcium ions. |
| 3. | not bound by a membrane. |
| 4. | organised into light and dark bands giving the muscle fibres a striated appearance. |
Subtopic: Skeletal Muscle: Sarcomere |
91%
Level 1: 80%+
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| Assertion (A): | The dark band on myofibril is anisotropic band. |
| Reason (R): | The light band on myofibril is isotropic band. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | Both (A) and (R) are false |
Subtopic: Skeletal Muscle: Myofilaments | Skeletal Muscle: Sarcomere |
91%
Level 1: 80%+
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